Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
A cubic yard of air weighs about 2 pounds at sea level.
31
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
A ball of glass will bounce higher than a ball made of rubber.
73
Sound at the right vibration can bore holes through a solid object.
134
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
For every gallon of sea water, you get more than a quarter pound of salt.
45